3. At eye-level and arms length, position Eclipse 8099 on its side with the clinometer facing
you and down.
4. Sight object behind the compass.
(Fig 36)
· Align either side of the clear base
with object.
5. On the clinometer card, read
inclination at the end of the green
clinometer arrow - 40°.
11.2.b -- Sight Hole Sighting
1. Make sure the 5° clinometer,
reference card 1, is centered in the vial.
2. Open sight cover to 45°.
3. Position Eclipse 8099 at eye-level with
mirror extending outward to the left
.
4. Above or below the horizon, sight an object
through sight hole. (Fig 37)
· Align cover line with the sight cover line.
5. Read inclination in the mirror, on reference
card - 40°. (Fig 37)
11.3 1 Degree Graduated Dial Clinometer
The 1° graduated dial clinometer is the most accurate means of sighting inclination. The
resolution of the graduated dial is 1°. Use this method to sight up from the horizon (0°) to
overhead (90°), or from the horizon down.
11.3.a -- Up Angle
1. Remove rubber shoe to expose back side
of compass.
2. Locate the clinometer index mark on the
back side of the azimuth ring.
3. Holding azimuth ring stationary, rotate vial
until the arrow on the blue
orienting circle
points to the clinometer index mark.
(Fig 38)
20
Figure 36
Figure 38
Figure 37
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